Un-Answered Questions { Engineering }

What is the percentage of carbon in cast iron ?

597


What is coaxing ?

777


What is the difference between heat capacity and specific heat of a material ?

602


What do you understand by eutectic ?

636


What for zinc finds applications ?

608


Which reactor has no moderator ?

630


What do you understand by catenary cable ?

732


What does thermal diffusivity of metals signify.

630


While normal carburising and nitriding surface treatments increase fatigue strength, excessive treatment may decrease the fatigue strength. Why ?

641


What type of boiler does not need a steam drum ?

648


Which impurities form hard scale and which impurities soft scale ?

628


Why an increase in area is required to produce an increase of velocity in case of supersonic flow ?

596


What is endurance limit and what is its value for steel ?

653


Explain the difference between ferrite, austenite and graphite ?

608


What is the difference between isentropic process and throttlinglprocess ?

631